Could not delete the certificates. Error: -61

Hello everyone,
When I try to install a new device on the cloud the installation process stops and a warning "Latest Arduino Agent Required" appears, even though I have correctly installed and started the latest version of ArduinoCloudAgent.

If I check the HTTPS certificates, I get a notice indicating that the certificates are expired, but if I try to update them, an error "Could not delete the certificates. Error: -61" occurs.

As a result, I can’t install any board on the cloud because ArduinoCloudAgent is not recognized.
Does anyone know how to solve this problem?